HR: 0800h
AN: C51A-0079    [Abstracts]
TI: Shackleton ice Shelf (Antarctica): Preliminary Results
AU: * Urbini, S
EM: stefano.urbini@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Roma, 00143, Italy
AU: Bianchi, C
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Roma, 00143, Italy
AU: Cafarella, L
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Roma, 00143, Italy
AU: Forieri, A
AF: Università di Milano, Dipartiimento Scienze della Terra, Sezione Geofisica, Via Cicognara 7, Milano, 20100, Italy
AU: Tabacco, I
AF: Università di Milano, Dipartiimento Scienze della Terra, Sezione Geofisica, Via Cicognara 7, Milano, 20100, Italy
AU: Zirizzotti, A
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Roma, 00143, Italy
AU: Baskaradas, J
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Roma, 00143, Italy
AU: Young, N
AF: Antarctic Cooperative Research Centre and Australian Antarctic Division, Private Bag 80, Hobart, 7001, Australia
AB: In this poster we present the interpretation of radio echo sounding (RES) measurements collected during 2003 Antarctic expedition on the region between Mirny (66° 33' S, 93° 01' E) and Casey (66° 17' S, 110° 32' E) stations. The expedition has been made by Italy and Australia and the radar survey provided data on ice thickness and bed morphology of the outlet glaciers and their floating portions. Data were acquired by means of an airborne radio echo sounding system (named INGV-IT) for remote-sensing studies of the polar ice in Antarctica. The aim of our work was to define the morphological characteristics of the Shackleton ice shelf. In fact several analysis were made on the RES data set: maps of bedrock morphologies, ice thickness, ice surface and its gradient. The different information coming from the maps were combined to define the main characteristics of the area. In particular it was well defined the morphological structure of the main ice drainage of the region corresponding to Northcliffe, Denman and Adams outlet glaciers. The analysis of the ice thickness of the ice shelf also gave important information about actual anchorage (floating) line.
DE: 0700 CRYOSPHERE (4540)
DE: 0724 Ice cores (4932)
DE: 0726 Ice sheets
DE: 0758 Remote sensing
DE: 0776 Glaciology (1621, 1827, 1863)
SC: Cryosphere [C]
MN: 2007 Fall Meeting